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United States Patent | 5,139,264 |
Wootten | August 18, 1992 |
Golf swing training apparatus disclosed includes a base, an upright support frame, rotary guide arm assembly at the top of the support frame establishing a reference axis of rotation at an inner arm portion and having an outer end flexibly coupled to the club head so that as the club is swung it is confined to a swing plane perpendicular to the reference axis of rotation. There is adjustment in frame height and angle of incline for the reference axis of rotation as well as adjustment in the drag. There is also a tensioning feature to dampen the inertia mass during the stroke.
Inventors: | Wootten; Robert A. (1310 Georgetown Rd., Boulder, CO 80303) |
Appl. No.: | 761670 |
Filed: | September 18, 1991 |
Current U.S. Class: | 473/229 |
Intern'l Class: | A63B 069/36 |
Field of Search: | 273/191 R,191 A,191 B,194 A,186 R,186 A,29 A,1.5 A,DIG. 30,29 B,29 F |
2472065 | Jun., 1949 | Cottingham | 273/191. |
3604712 | Sep., 1971 | Prior et al. | 273/191. |
3752476 | Aug., 1973 | Mahoney | 273/1. |
3876212 | Apr., 1975 | Oppenheimer | 273/191. |
4040633 | Aug., 1977 | Sciarrillo | 273/191. |
4047605 | Sep., 1977 | Rosenvold | 273/186. |
4261573 | Apr., 1981 | Richards | 273/191. |
4755401 | Jul., 1988 | Friedrich et al. | 273/DIG. |
4949974 | Aug., 1990 | Bellagamba. | |
5050874 | Sep., 1991 | Fitch | 273/191. |
Foreign Patent Documents | |||
3389 | Aug., 1932 | AU | 273/29. |
The Dream Swing Machine, SwingTech, The Swinging, Perfect Swing, The Dunaway Way, and The Coach. |